Not only did I need the famous "hidusb.sys", but I also ended up needing "hidparse.sys", "hidvkd.sys", "hidclass.sys", "hiddev.inf" and since I was installing a keyboard I also needed "kbdhid.vxd". Sign in to add this to Watch Later Add to Loading playlists... Loading... http://interacccess.com/elm327-usb/elm327-interface-drivers-windows-7.php Restart computer (while keeping cable connected to laptop).

Pascal Brejaud 173,439 views 9:51 ELM327 USB CAN-BUS OBDII Interface - Duration: 0:53. And yes, you can safely drive the vehicle while diagnosing it. Do not launch it until Step 4 below. Go to Step 2 below to test if everything is working ok...